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Article Number: 000146334

OptiPlex 7070 Mini Tower (MT) Teardown Removal Guide for Customer Replaceable Units (CRUs)

Summary: This article is a guide to the removal of parts of the Dell OptiPlex 7070 Mini Tower desktop that Dell considers OK for anyone to remove and replace.

This article may have been automatically translated. If you have any feedback regarding its quality, please let us know using the form at the bottom of this page.

Article Content

Symptoms

These guides take you step by step through the safe removal of the customer replaceable unit (CRU) parts of a OptiPlex 7070 Mini Tower (MT) system. CRUs are the parts of the system that should not need an engineer to remove or replace. The guides also include figures to reference what is involved.

Cause

Not applicable

Resolution

Table of Contents:

  1. CRU Removal Guide
  2. Removal Instructions

 

Removal Guide

 

If these guides do not cover what you are looking to do, then reference your System Manual.

The article below provides information about safe practices to consider before working with electrical equipment.


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Removal Instructions

 

Note: Click the title of the section that you want to open below in order to see the contents.

 

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Recommended tools

 

1 Small Phillips head screwdriver 2 Plastic scribe
3 Small flat head screwdriver    
 
Note: Using a large Phillips or flat head screwdriver may result in damage to the head of the screws. This makes their removal impossible without specialty tools that are not available to our onsite engineers.

 

  1. Pre-removal instructions before removing the system cover:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

  2. Put the system on its side with the access panel facing up, and push the blue release latch on the back of the system into the center to unlock the cover [1].

Unlocking the system cover

  1. Push the panel towards the rear of the system and lift it up and off of the computer [2].

 

  1. Pre-removal instructions before removing the front bezel:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover.

  2. Pry up the three retention tabs along the left side of the bezel [1].

Prying the retention tabs

  1. Rotate the bezel to the right on the three hooks [2].

Rotating the bezel

  1. Pull the bezel off the front of the system [3].

 

  1. Pre-removal instructions before removing the SD media card:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

  2. The SD card reader slot is located on the front of the system.

  3. Push the card in and release it, then pull it out of the slot.

 

  1. Pre-removal instructions before removing the hard disk drive:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

 

  1. The 3.5" hard drive is located at the top of the system in the swing out panel. Disconnect the power and data cables from the rear of the drive.

Disconnecting power and data cables

  1. Remove the metal EMC filler plate from the front of the system [1].

Removing the filler plate

  1. Press the blue 5.25" bay release catch on the swing out panel [2] and pull the drive in its blue caddy out the front of the computer [3].

Removing the drive in the blue caddy

  1. The 2.5" hard drive is located at the bottom of the system in the swing out panel. Open the swing panel and disconnect the power and data cables from the rear of the drive [1].

Disconnecting power and data cables

  1. Press the blue tabs on either side of the caddy together [2] and pull the drive out of the computer [3].

  2. Repeat steps 2 and 3 if a second 2.5" hard drive is fitted.

 

  1. Pre-removal instructions before removing the M.2 SSD card:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. Open the swing panel, and the M.2 SSD card is located in front of the memory slots. Remove the screw holding the card down [1].

Removing the M.2 SSD card

  1. When the card pops up at an angle, pull the card out of the connector and out of the computer [3].

 

  1. Pre-removal instructions before removing the optical disc drive (DVD/CD RW):

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. The optical disc drive is located under the 3.5" hard drive at the top of the swing out panel. Open the panel and remove the cables from the rear of the drive [1] and close the panel [2].

Removing cables

  1. Squeeze the blue release tab at the rear of the drive [1].

Squeezing the blue release tab

  1. Slide the drive out the front of the computer [2].

 

  1. Pre-removal instructions before removing the Expansion Cards:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. The expansion slots are on the rear of the system, open the swing panel and using the blue tab unlock the option slots [1].

Removing the expansion card

  1. Push the blue release tab at the back of the card [2] and lift the card up and out of the system [3].

 

  1. Pre-removal instructions before removing the memory:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. The memory is located under the swing out panel and in front of the Heatsink, pull the tabs on either side of the DIMM apart to release the memory DIMM [1].

Removing the memory DIMM

  1. Lift the DIMM up and out of the slot and the computer [3].

Note: Repeat Steps 2 and 3 for any additional Memory DIMMs located in the system.

 

  1. Pre-removal instructions before removing the coin-cell battery:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. The coin-cell battery is between the option slots and the heat sink, lift the swing panel and press the release catch until the battery pops up [1].

Removing the coin-cell battery

  1. Lift the battery from the connector and the computer [2].

 

  1. Pre-removal instructions before removing the internal speakers:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. The speaker is clipped to the swing out panel beside the 2.5" hard drive bays, disconnect the cable from the motherboard [1].

Removing the internal speaker

  1. Lift the securing tab on the speaker [2] and slide the speaker out of its slot [3].

 

  1. Pre-removal instructions before removing the intrusion switch and cable:

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. The heat sink fan is located in the middle of the system under the swing out panel. Open the panel and disconnect the fan cable from the motherboard [1].

Removing the heatsink fan

  1. Remove the four (4) Torx screws from the top of the fan [2] and lift the fan out of the system [3].

 

  1. Pre-removal instructions before removing the Power Supply Unit (PSU):

    1. During installation or removal of any hardware, always ensure that all data is backed up properly.

    2. Disconnect any telephone, network, or USB cables from the computer.

    3. Disconnect the computer and all attached devices from their electrical outlets.

    4. Remove the System Cover and Front Bezel.

  2. The PSU is located in the bottom of the computer under the swing open panel. Open the swing panel and disconnect the power cables from the motherboard [1,6].

Disconnecting power cables

  1. Unroute the PSU cable from the retention hooks [2,3,4,5].

  2. Remove the three (3) screws securing the PSU to the back of the chassis [1] and press the blue release tab in front of the PSU [2] and slide and lift the PSU up and out of the system [3].

Removing the power supply

If you require further assistance, contact Technical Support.
Contact Us OptiPlex 7070 Customer replaceable unit (CRU) teardown index

Article Properties

Affected Product

OptiPlex 7070 Tower

Last Published Date

01 Jul 2023

Version

6

Article Type

Solution

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